Device for the interruption of the projection of kinematographic pictures.



G. G. A. E. WIESE. DEVIGE FOR THE INTERRUPTION OF THE PROJECTION 0FKINEMATOGRAPHIG PICTURES.

APPLICATION FILED MAR.17,1914.

1,120,577. Patented D60.8,1914.

I a '1 i g FE 'IQEQ CONRAD CARL ARTHUR EDWIEN 'WIESE, OF HAMBURG,GERMANY.

DEVICE FOR THE INTEBRUPTION' OF THE PROJECTION 0F KINEMATOG-RAPHICPICTURES.

Specification of Letters Patent.

Patented Dec. 8, 1914.

Application filed hlarch 17, 1914- Serial No. 825,897.

To all whom it may concern:

Be it known that I, CONRAD CARL ARTHUR EnwmN WmsE, electrical engineer,a subject of the German Emperor, residing at No. 24 Maxstrasse, Hamburg,Germany, have invented new and useful Improvements in or Relating to aDevice for the Interruption of the Projection of KinematographicPictures, of which the following is a specification.

his invention relates to the projection of moving pictures upon ascreen.

More especially the invention relates to the projection of movingpictures wherein, at certain predetermined times, a target of desiredpictorial characteristics may be exposed upon the screen at apredetermined point, the screen being provided at that point with adepressible portion arranged to actuate a circuit closer so that whenthe target is struck at the proper point a second series of pictureswill be displayed upon the screen, the target, as such, disappearingfrom the screen. For instance at a predetermined time in the projectiona deer may be displayed as advancing or retreating from a certain partof the screen. The marksman, standing at a distance from the screenfires at the deer. If his bullet strikes the animal the running deerwill disappear from the screen by reason of the projection of the filmcontaining the representation of a running deer being shut 05 from thethe target picture is not projected thereon and the shot strikes thedepressible portion of the screen it will not have the eifect of closingthe circuit.

With the above and other objects in view the invention consists ingeneral of certainnovel detalls of construction and comb1na= tion ofparts hereinafter fully described illustrated in the accompanyingdrawings, and specifically claimed.

In the accompanying drawings, like characters of reference indicate likeparts in the several views, and :Figure 1 is a diagrammatic view of aportion of a projection apparatus showing the improvement hereindescribed but omitting all unnecessary parts. Fig. 2 is a modificationof certain parts of the apparatus illustrated diagrammatically. Fig. 3is a diagrammatic view showing the relative positions of the films,objectives and shutter, the view being merely typical of a suitablearrangement for this purpose.

In carrying out the objects of the invention there is disclosed in thepresent showing a film a provided with the usual successive pictures butcertain of these pictures are provided with special target markings asindicated at 6. These target markings may be of various styles, as forinstance they may be perforated so that an extremely bright spot may bethrown on the screen for any period of time necessary to run the sec-'tion of film containing such markings through the machine; it may be aspot produced by elimination of the emulsion or by coloring the same orin any other desired manner. The projection of this portion of thepicture on the screen indicates the striking point for the projectile.

In order to operate the apparatus a certain electrical circuit isemployed, hereinafter to be explained, and in order to close a break inthis circuit at the time that the range of target pictures is beingprojected and to operate thisbreak as soon as the range is completed acircuit closer, now to be described is employed. In the form shown inFig. 1 the film a is provided in one of the edges with recessed portionsd and d. In a suitable bracket is supported a pivot point e whereon ismounted a lever having arms e and 6 On the arm 6 is mounted a roller fwhich engages the edge of the film a, being constantly held in contactwith said film by a spring g attached to the lever arm 6 so that whenthe recessed portions 03 and d come'opposite the roller f the lever willmove.

At 72. is a pivot pin whereto is provided an anchor having the pallets hand k and this anchor is connected to the lever arm 6 so that as thelever is operated the anchor will likewise be operated.

At la is a shaft whereon is mounted a ratchet wheel 11 arranged forengagement by the anchor so that as the anchor moves from one positionto the other the ratchet wheel will be advanced one tooth. On this shaft7c is also mounted a contact wheel jhaving alternate insulating andcontact portions on its surface. This wheel j is arranged to rotate withthe wheel 7; and it is engaged by a contact Z mounted on a springcontact arm Z. Now as the roller 7 passes into the recess cl the anchorwill operate and turn the wheel 11 and cause the contact member Z torest on a contact portion of the wheel j. When the recess (1 reaches theroller f the anchor will again operate to bring the member Z on aninsulating portion of the wheel 7'.

In the formof the device shown in Fig. 2 there is disclosed a crank ormotor shaft 2 which is connected through a train of wheels to a wheel 7"arranged to revolve once during the whole length of the movement of thefilm. On this'wheel j is a contact member or projection 3 correspondingin length to the length of the range of pictures of the film showing thetarget I) and so positioned on the wheel that a spring contact Z willengage therewith during the period of such projection.

The picture screen 0 is provided with a suitable opening for thereception of a plunger head 1* having a stem supported in a bracket qand normally held flush with the surface of the screen 0 by means of aspring 1". This portion 1' is a portion of the screen whereon the targetpicture is projected, by target pictureit is to be understood that thereis meant the portion 7) of the picture.

Behind the bracket 9 is suitably supported a pair of spring contactmembers 0 and o while the stem of the plunger carries a contact wedge 0which moves lnto engagement momentarily with the member 0 and 0 when theplunger head 1' is depressed when struck by a projectile. Leading fromthe shaft k is a wire m which extends to a battery E or other source ofelectrical energy.

' This battery is connected by means of a wire m with the contact member0' while the contact member 0 is connected by a wire n with the contactarm Z, a magnet 72 being interposed in this wire.

At u and u are a pair of objectives, the picture from the film a beingprojected through the objective it while the objective u is used toproject a second series-of pictures from a second film. The objective uis normally shut ofi from the screen by a shutter t which is engaged bya hook in one arm 8 of a lever whichis pivoted at s intermediate itsends. The remaining arm of this lever, s, is provided with -a suitablearmature for the magnet p, so that when the magnet is energized thelever will re lease the shutter t and allow the same to drop and coverthe objective u and uncover the objective u.

In the operation of the device. as a whole, when the point of the film(1 containing the target picture arrives opposite the objective, u, thecircuit closer operated by the filmwill be closed. The target picturewill then be projected on the plunger head 1' and may be fired at withany desired weapon. Upon the plunger head being struck, circuit isclosed between the members 0 and 0 which completes -the entire circuitthrough the magnet 72. The shutter thereupon drops and the targetpicture disappears from the screen being replaced by the second set a ofpictures. To use the example before referred to, a running deerprojected on the plunger head 1' may be cut off and a second set ofpictures representing the deer falling down takes the place thereof,showing the marksman that he has made a hit. I

It will be understood that the above is merely cited'as one of manytarget pictures that will be used.

It will be obvious that in connection with this apparatus there may becut into the circuit any desired means, of the character common inapparatus of this class for stopping the film a and starting the secondset of pictures or otherwise manipulate the two sets as desired. Thisprojecting arrangement forms no part of the invention and is, therefore,not herein illustrated.

It will also be understood that any number of plunger heads 1' may bedisposed in desired position on the screen so that more than one portionof the projected picture may be used as a target.

Having thus described the invention,-

tive closed and the other open, electro-magnetic means for releasingsaid shutter to open the first and close the second objective, and acircuit closer actuated by the depression of the screen portion andconnected in series to said electro-magnetic means.

3. The combination with a film having a recess in one edge, of a leverhaving an end engaging said ed e and adapted to enter said recess, aspring holding said lever recess in one edge, of a lever having an endengaging said edge and adapted to enter said recess, a spring holdingsaid lever in said engagement, an anchor pawl connected to said lever, aratchet wheel engaged by 10 said pawl for operation by the movement ofthe pawl, a contact wheel having alternate contact and insulatingportions and movable with said ratchet wheel, and a contact engagingsaid wheel.

In testimony whereof I have signed my name to this specification in thepresence of two subscribingfwitnesses, this 21 day of February 1914.

CONRAD CARL ARTHUR EDWIEN WIESE.

Witnesses:

F. JULIUS TosHs, ERNEST H. L. MUMMENHOFF.

